Perirenal hemorrhage syndrome in market turkey toms: effect of management factors.
Differences in the overall mortality rates and mortality due to perirenal hemorrhage syndrome (PHS) were compared in large white Nicholas tom turkeys. The study evaluated the effects of 1) four different light and temperature treatments; 2) three feed additives proposed to have anti-stress effects (reserpine, acetylsalicylic acid, and increased calcium); 3) toe-clipping on mortality, various disease conditions, and production parameters. Mortality varied from 0.60% to 3.57% among groups. Increased room temperature (21 C), toe-clipping, step-up/step-down lighting, and dietary reserpine reduced the incidence of PHS as compared with lower room temperature (13 C), no toe-clipping, intermittent lighting (2 hours light, 4 hours dark), and no dietary reserpine. Dietary aspirin or elevated calcium levels had no effect on PHS incidence. Overall mortality was greatest in the warmer rooms.
Frank
R K
RK
Department of Veterinary Diagnostic Investigation, College of Veterinary Medicine, University of Minnesota, St. Paul 55108.
Noll
S L
SL
el Halawani
M
M
Newman
J A
JA
Halvorson
D A
DA
Ruth
G R
GR
D000822:Animal Husbandry; D000818:Animals; D001241:Aspirin / Q000008:administration & dosage; D001835:Body Weight; D002136:Calcium, Dietary / Q000008:administration & dosage; D005503:Food Additives; D006470:Hemorrhage / Q000209:etiology / Q000401:mortality / Q000662:veterinary*; D007674:Kidney Diseases / Q000209:etiology / Q000401:mortality / Q000662:veterinary*; D008027:Light; D008297:Male; D011201:Poultry Diseases / Q000209:etiology* / Q000401:mortality; D011336:Probability; D012110:Reserpine / Q000008:administration & dosage; D012140:Respiratory Tract Diseases / Q000401:mortality / Q000662:veterinary; D013696:Temperature; D014422:Turkeys
D002136:Calcium, Dietary; D005503:Food Additives; D012110:Reserpine; D001241:Aspirin